Roses are the items that you need to upgrade your babes. Initially you can use roses to increase the favor of your babes by playing the cup game. Certain babes also have growth skills which increase troop load and resource production making them important for your farm accounts. One of the best ways of getting roses is from the yacht itself. Whenever you see the yacht in your turf, you should always click on it to check the offers that it has available. If you find offers where you can exchange roses for 2 or 3 resource production buffs you should always get them as they are the best offers available.